Microsoft Teams Fully Broken After Update — Messaging, Sync, and Calls All Fail
A Teams update rendered the mobile app entirely non-functional: messages cannot be sent, desktop-sent messages are invisible, and calls cannot be joined. Every primary feature of the app stopped working simultaneously. The breadth of the failure suggests a fundamental authentication or sync layer regression rather than an isolated feature bug.
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Problem descriptions, scores, analysis, and solution blueprints may be updated as new community data becomes available.